"Knoppix comes bundled with a bucket of tools, and although 1.7GB of uncompressed space goes a long way, you might hit the problem of having to use software that Knoppix doesn't include by default. Additionally, you may make changes in configurations that you want to keep when you reboot, or store data between Knoppix sessions. Thankfully, there are a few different ways to solve this problem, some being easier to use and more successful than others. This article shows you how to use and modify Knoppix to save your data and install new software."